Rush - short phase in, you attempt to dominate the board from the start and don't let any of their monsters phase in.Slowroll - long phase in, high power monsters, you attempt to keep them alive until they are phased in and then hopefully obliterate the opponent with epic attack power.Spam - using multiple copies of the same card so irradiated infantry or sawblade decks are pretty common. Basicly they are good for auto play or defensive where there is no way to mess up the playing.